From the first day on Stranger Things to their final season together, here's a look at how their friendship has evolved.

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They've been friends since they shot the show's debut season in 2015 - both on-screen and off.

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In spite of little onscreen interaction between Eleven and Will Byers, the two have grown extremely close behind the scenes.

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The Stranger Things set on its first day, December 2015

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First red carpet together for Millie Bobby Brown and Noah Schnapp, July 2016

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BAFTA Tea Party: Millie Bobby Brown and Noah Schnapp, January 2017

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Afterparty of the Golden Globes 2017 with Millie Bobby Brown and Noah Schnapp

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The Millie Bobby Brown and Noah Schnapp friendship test 2019

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Noah Schnapp and Millie Bobby Brown talk about Stranger Things ending in 2022

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Stranger Things season 4 premiere in May 2022: Millie Bobby Brown and Noah Schnapp

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